向外部发出请求 api

Question

i am learning node.js and i have a problem. basically I'm trying to create an api route that will make a call to an external api

but when I do a test with postman, I get the error "Cannot GET /api/books". has anyone have an idea?

here is my function. (for security reasons I did not add my APIkey in the post

 const pool = require("../db"); const fetch = require('node-fetch'); exports.getOneBooksbyName = (req, res, next) => { const title = req.params; const APIKey = ""; fetch("https://www.googleapis.com/books/v1/volumes?q=" +title+ "&key="+APIKey).then(res => { const data = res.json(); res.status(200).json(data); } ).catch(err =>{ res.status(500).json({message:'error'}) }) };

and then my route

 const express = require('express'); const router = express.Router(); const {getOneBooksbyName} = require('../controllers/books'); router.get('/?title', getOneBooksbyName); module.exports = router;

and finally my app.js

 const express = require("express"); const pool = require("./db.js") const UserRoutes = require("./routes/user.js"); const app = express(); var bodyParser = require('body-parser'); const BookRoutes = require("./routes/book.js"); app.use(express.json()); //pour gerer les requetes POST app.use(bodyParser.urlencoded({ extended: true })); app.use((req,res,next)=>{// POUR CONTOUNER LA SECURITE CORS res.setHeader('Access-Control-Allow-Origin', '*'); res.setHeader('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content, Accept, Content-Type, Authorization'); res.setHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, PATCH, OPTIONS'); next(); }); app.use('/api/users', UserRoutes); app.use('/api/books', BookRoutes); module.exports = app;

Answer 1

I use java script and jquery to achieve this

Javascript function using jquery ajax to call API via URL and return result

function api_fetch(url) {
    var result = 0;
    $.ajax({
        url:url,
        type: 'GET',
        async: false,
        dataType: 'html',
        success: function (response) {
            console.log(`response from fetch ${response}`)
            result =  response
        },
        error: function (error)
        {
            console.log(`response from fetch ${error}`)
            result = error
        }
    })

    return result
}

I personally created a Django API, and I need to check if there is a record for a number in a database, so I implemented another js function to call the API

function check_number(number) {
    let get = api_fetch(`/api/verifnum/${number}`)
    console.log(`check number fetch ${get}`)
}

when I console log check number it gives me desired result

check_number('number') // returns number of record if exist or 0